Toy piano



FIG. 1 is a front elevational view of a toy piano showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a bottom plan view thereof; and

FIG. 5 is a right side elevation view thereof, the side opposite being substantially a mirror image. 

The ornamental design for a toy piano, as shown and described. 